Person Based Reminders. Another breakout feature of Cortana is reminders on a whole new level. You can ask Cortana to remind you about something the next time you speak to any of your contact via your Windows Phone. And the medium can be any, a phone call or a text message.
Retain is defined as to keep, hold on to or keep in place. An example of retain is to keep a prized possession from childhood. An example of retain is for mouth-gear to keep the teeth in place. to hold or keep in possession.
A retainer is a simple device that helps to correct your bite, as well as sometimes address other conditions. You may have seen people wearing a retainer before, but they are not all that noticeable. A retainer is a small device that is made out of clear plastic, rubber, or even metal. They are custom-made so that they only fit your teeth. They are part of a treatment plan that has likely been determined by an orthodontist.